Sun-Earth Day 2011: Ancient Mysteries, Future Discoveries

Chicago citation style
National Aeronautics and Space Administration. Goddard Space Flight Center. 5/1/1959. Sun-Earth Day 2011: Ancient Mysteries, Future Discoveries. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/17394143. (Accessed September 19, 2018.)
APA citation style
National Aeronautics and Space Administration. Goddard Space Flight Center. 5/1/1959, Sun-Earth Day 2011: Ancient Mysteries, Future Discoveries. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/17394143
MLA citation style
National Aeronautics and Space Administration. Goddard Space Flight Center. 5/1/1959. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/17394143>.
Note: These citations are programmatically generated and may be incomplete.